A direct experimental comparison of single-crystal CVD diamond and silicon carbide X-ray beam position monitors.

Single-crystal chemical vapour deposition (CVD) diamond detectors are an established transmissive synchrotron beamline diagnostic instrument used for beam position and beam intensity monitoring. A recently commercialized alternative is silicon carbide (4H-SiC) devices. These have the potential to provide the same diagnostic information as commercially available single-crystal CVD diamond X-ray beam position monitors, but with a much larger transmissive aperture.

Center for clinical and translational research COVID-19 clinical trial committee: The development of a review and prioritization matrix during a pandemic.

The rate at which the coronavirus disease (COVID-19) spread required a rapid response across many, if not all, industries. Academic medical centers had to rapidly evaluate, prioritize, and coordinate the multiple requests for clinical trial participation. This involved redirecting resources and developing a collaborative system for assessment, decision making, and implementation.

Megahertz non-contact luminescence decay time cryothermometry by means of ultrafast PbI scintillator.

Realtime in situ temperature monitoring in difficult experimental conditions or inaccessible environments is critical for many applications. Non-contact luminescence decay time thermometry is often the method of choice for such applications due to a favorable combination of sensitivity, accuracy and robustness. In this work, we demonstrate the feasibility of an ultrafast PbI scintillator for temperature determination, using the time structure of X-ray radiation, produced by a synchrotron.

Direct Observation of Incoherent Cherenkov Diffraction Radiation in the Visible Range.

We report on the observation of incoherent Cherenkov radiation emitted by a 5.3 GeV positron beam circulating in the Cornell electron-positron storage ring as the beam passes in the close vicinity of the surface of a fused silica radiator (i.e.

Does nitrous oxide labor analgesia influence the pattern of neuraxial analgesia usage? An impact study at an academic medical center.

Study Objective: To compare the rate of epidural use before and after the implementation of nitrous oxide (NO).

Design: Data were obtained from a nursing database of NO usage and our obstetric anesthesia database. We compared 8 months before and 8 months after the introduction of NO.